Introduction to Python Course

I've been running into a bit of weirdness with Unions (and Optionals, of course) in Python - na… Read more How Do I Avoid Type Errors When Internal Function Returns 'union' That Could Be 'none'?

I wrote the following function: def _clean_dict(d): return {k: v for k, v in d.items() if v is … Read more Exclude Type In Python Typing Annotation

I have a decorator which adds a user onto the flask global context g: class User: def __init__(… Read more How Can I Add Python Type Annotations To The Flask Global Context G?

Could I specify exclusive type? Something like this: def foo(bar: Not[str]) -> None: assert … Read more Pep 484: Exclusive Type For Type Hint

Why does Mypy complain that it requires a type annotation for a list comprehension variable, when i… Read more Why Is Mypy Complaining About List Comprehension When It Can't Be Annotated?

I am writing a CustomEnum class in which I want to add some helper methods, that would then be avai… Read more Type Hint For Return Value In Subclass

I have a function which validates its argument to accept only values from a given list of valid opt… Read more Typing: Dynamically Create Literal Alias From List Of Valid Values

how to correctly write types for the function whose return type is modified by decorator ? Simple … Read more Typing Function When Decorator Change Return Type